conf/sigmod/79 Patricia G. Selinger Morton M. Astrahan Donald D. Chamberlin Raymond A. Lorie Thomas G. Price Access Path Selection in a Relational Database Management System. 23-34 1979 SIGMOD Conference db/conf/sigmod/sigmod79.html#SelingerACLP79 SIGMOD79/P023.PDF http://doi.acm.org/10.1145/582095.582099 journals/tods/AstrahanBCEGGKLMMPTWW76 ... journals/acta/BayerM72 ... ... ... journals/cacm/Codd70 ... ... ... journals/tods/StonebrakerWKH76 conf/vldb/Todd75 journals/tods/WongY76 conf/vldb/Zloof75